Comedy Central’s new sketch series Key & Peele premieres this Tuesday, Jan. 31 at 10:30pm/9:30 central. The show stars African-American Mad TV alums Keegan-Michael Key and Jordan Peele, and the sketches often revolve around taboo topics or racial stereotypes.

The two are already well-known for their string of skits in which Peele impersonates President Obama, and his “anger translator”, Luther, is played by Key. These videos went viral in early January, but even before Key and Peele’s parody series began, there have been several other successful President Obama impersonations popularized by professional comedians. Here are some of our favorites…